After doing some reading, it looks like you can do a 30% xylene mix with 93 octane and get a 100 octane rating. I thought 10% was the limit but it looks like 30% will work.

I spoke to a lab about Toluene.. and the only thing they said was that if you run more than 20% you may be a little smokey.. no other side effects. It also had no lead..so your cats, O2 and injectors will be ok...everyone here uses it in their cars.. EVOS, GTRs, WRX... seems to work well ..buy a drum and keep it covered and you're fixed !

Is VP leaded ??? Anyone know??